NAME

SYNOPSIS

DESCRIPTION

[CX] The functionality described on this reference page is aligned with the ISO C standard. Any conflict between the
requirements described here and the ISO C standard is unintentional. This volume of IEEE Std 1003.1-2001 defers to
the ISO C standard.

The putwc() function shall be equivalent to fputwc(), except that if it is
implemented as a macro it may evaluate stream more than once, so the argument should never be an expression with side
effects.

RETURN VALUE

ERRORS

EXAMPLES

None.

APPLICATION USAGE

Since it may be implemented as a macro, putwc() may treat a stream argument with side effects incorrectly. In
particular, putwc(wc,*f++) need not work correctly. Therefore, use of this function is not recommended; fputwc() should be used instead.